This product has Thermostatic Temperature Control: this will mix the hot and cold water to a specific temperature before it enters the bath. The valve regulates the water temperature to eliminate dangerous fluctuations that could scald, while also adding convenience. It has Adjustable Water Jets: The ability to vary water jets intensity is fundamental to maximizing your hydro massage experience. A special dial varies the speed at which water is pushed out through the water jets. Check that all jets are adjustable.